Grotta Azzurra, also known as The Blue Grotto, is a sea cave in Southern Italy. Sunlight ignites the gorgeous seawater brightening up the cave! It is rather difficult to enter, upon arrival you must lie flat at the bottom of the rowboat to fit under the mouth of the cave. Once inside you can comfortably sit up and enjoy natures wonder.
The Blue Grotto (Italian: Grotta Azzurra) is a sea cave on the coast of the island of Capri, southern Italy. Sunlight, passing through an underwater cavity and shining through the seawater, creates a blue reflection that illuminates the cavern. The cave extends some 50 metres into the cliff at the surface, and is about 150 metres (490 ft) deep, with a sandy bottom.Provided By: https://en.wikipedia.org/wiki/Blue_Grotto_(Capri)